Select the correct statement w.r.t. Golden rice vareity of Oryza sativa

Options

A. It was created by transforming rice with psy and crt 1 genes
B. Golden rice was designed to produce `beta`- carotene in the endosperm part
C. It is rich in a-carotene, an active form of vitamin A
D. It was created by Ingo Potrykus of the Institute of Plant Sciences at the Swill Federal Institute of Technology

Answer

### Step-by-Step Solution:

1. **Understanding Golden Rice**: Golden rice is a genetically modified variety of rice (Oryza sativa) that has been engineered to produce beta-carotene, a precursor to vitamin A. This modification aims to address vitamin A deficiency in populations that rely heavily on rice as a staple food.

2. **Analyzing the Options**:
- **Option 1**: Claims that golden rice was created by transforming rice with PSY and CRT1 genes. This statement is misleading because while these genes are involved in the biosynthesis of beta-carotene, the phrasing suggests a direct transformation that is not accurate.
- **Option 2**: States that golden rice was designed to produce beta-carotene in the endosperm. This is a true statement, as the primary purpose of golden rice is indeed to produce beta-carotene in its endosperm, which can be converted to vitamin A in the human body.
- **Option 3**: Claims that golden rice is rich in active forms of vitamin A. This is incorrect because golden rice contains beta-carotene, which the body can convert to vitamin A, but it does not contain vitamin A in its active form.
- **Option 4**: States that it was created by Ingo Potrykus at the Swiss Federal Institute of Technology. While Ingo Potrykus was involved in the development of golden rice, the statement is misleading as it does not mention the collaboration with Peter Beyer, and it inaccurately attributes the creation to a specific institution.

3. **Conclusion**: The only correct statement regarding golden rice is that it was designed to produce beta-carotene in the endosperm.

### Final Answer:
The correct statement with respect to the golden rice variety of Oryza sativa is: **Golden rice was designed to produce beta-carotene in the endosperm.**

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